Does anyone have any opinions on these two Dick York signatures?

http://www.ebay.com/itm/141623127175

http://www.ebay.com/itm/121638704362

The top one I already bought, now I'm feeling, too rashly. Before I bought it, I did Google searches for examples of his autograph and looking at the memorabilia pages of some of the Bewitched fansites. There was at least one I found that matched pretty well the one I bought, even the "Good luck," but I guess they could both be forgeries from the same source: http://www.bewitched.net/bewitched/memorabl/joanau2_.jpg After further research, the Agnes Moorehead and Elizabeth Montgomery signatures on that same photo look more obviously faked, so the York could be as well. 

This envelope shows his Y's which also seem a bit off from the eBay ones:

http://www.bewitched.net/bewitched/memorabl/york_envel.jpg

From searching online quite a bit now, including other sites that sell autographs, it seems there are either a lot of Dick York forgeries or his signature varied a lot (or both things are true!). I'm a huge Bewitched fan, and after 15 years of searching and writing (when more of the supporting cast was still alive) York's is the last autograph I need of the cast. The one I bought was JSA approved, but as I've been reading more online and looking at this site more, I realize that that might not mean much in some cases. Thanks to anyone with thoughts on this!

Edited to add: this is what the seller of the top autograph (the one I already bought) said in response to where it came from: "Hello, I am sorry, but there is no way to say for sure. This was in a collection autographs gotten in the 1960s-70s. The collector is passed. He got signatures through the mail, in person and from autograph dealers." I don't doubt him, but it's not too helpful.